Quarterly report pursuant to Section 13 or 15(d)

LEASES (Narrative) (Details)

v3.21.1
LEASES (Narrative) (Details)
Mar. 31, 2021
Lessee, Lease, Description [Line Items]  
Weighted average remaining lease term 2 years 9 months 18 days
Weighted-average discount rate - operating leases 4.22%
Minimum  
Lessee, Lease, Description [Line Items]  
Lease term 1 year
Minimum | Drilling Rig  
Lessee, Lease, Description [Line Items]  
Lease term 1 year
Maximum  
Lessee, Lease, Description [Line Items]  
Lease term 5 years
Maximum | Drilling Rig  
Lessee, Lease, Description [Line Items]  
Lease term 2 years